Walkers were concerned after a stream turned white, with seemingly no explanation.
It's been reported that the stream in Blackbrook, St Helens has turned a milky white colour several times in recent months and years. The Environment Agency has confirmed that this has been reported to them, but they are not yet able to provide an explanation.
Some living close to the stream claimed that the water turns this colour "once every three weeks or so", while others raised concerns over possible pollution being the cause of a change in colour, with pictures showing the contrast between the white stream and normal coloured water in the background.
